Patents Examined by Bruce Gray
  • Patent number: 5103010
    Abstract: A new diphenyl-methane derivative is useful to inhibit agglomeration of blood and is defined by the formula, including a diphenylethylene derivative and a benzophenone oxime ether derivative. ##STR1## in which R1 and R2 each are hydrogen, hydroxyl or a lower alkoxy, U is .dbd.CXY or .dbd.N--O--W,X is hydrogen, cyano or --COR6, R6 being hydroxyl or an amino, Y is --R10--COOR3, R3 being hydrogen or a lower alkoxy, R10 being an alkylene having 1 to 3 carbon atoms, straight or branched, --CO--NR4R5, R4 and R5 each being hydrogen, a lower alkyl or a lower arylalkyl, --CH2--NHSO2--C6H5 or --C(R8).dbd.NR7, R7 being a lower alkoxy or an aryl, R8 is --VR9, V being oxygen, sulfur or nitrogen, R9 being an alkyl or an aryl,W is --CH2--CO--CH2--COOR13, R13 being hydrogen or a lower alkyl, --CH2--C(.dbd.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: April 7, 1992
    Assignee: Eisai Co., Ltd.
    Inventors: Youji Yamagishi, Kozo Akasaka, Takeshi Suzuki, Mitsuaki Miyamoto, Kouji Nakamoto, Kazuo Okano, Shinya Abe, Hironori Ikuta, Kenji Hayashi, Hiroyuki Yoshimura, Tohru Fujimori, Koukichi Harada, Isao Yamatsu
  • Patent number: 5103040
    Abstract: This invention relates to novel 1,7-disubstituted-6-fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives and certain esters and cation salts thereof. This invention further relates to preparation of the compounds, antibacterial compositions containing the compounds and methods of using the compounds.This invention also relates to a novel process for preparing novel N-cyclopropyl intermediates useful for preparing certain of the 1,7-disubstituted-6-fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives of this invention which contain a cyclopropyl substituent at the 1 position as well as other 1,4-dihydroquinol-4-one-3-carboxylic acid derivatives so substituted with cyclopropyl.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: April 7, 1992
    Assignee: Pfizer Inc.
    Inventor: Paul R. McGuirk
  • Patent number: 5099060
    Abstract: Novel amino acid-derived polycarbonates and amino acid-derived diphenol compound starting materials from which the polycarbonates are polymerized. Polymer blends of the amino acid-derived polycarbonates with polyiminocarbonates prepared from identical amino acid-derived diphenol starting materials.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: March 24, 1992
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Joachim B. Kohn, Satish K. K. Pulapura
  • Patent number: 5099021
    Abstract: Process for the preparation of pure, unsymmetrically disubstituted ureas of the general formula ##STR1## in which R denotes a phenyl radical which is unsubstituted, or monosubstituted or polysubstituted by halogen atoms or alkyl, alkoxy, aryloxy or trifluoromethyl groups, an oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzoxazolyl or benzothiazolyl radical which is unsubstituted, or monosubstituted or polysubstituted by halogen atoms or alkyl, alkoxy or trifluoromethyl groups and R.sub.1 and R.sub.2 independently of one another denote a hydrogen atom or an alkyl group, where R.sub.1 and R.sub.2 are not simultaneously hydrogen or R.sub.1 and R.sub.2 together denote a butylene or pentylene group, by reaction of an N-alkyl- or N,N-dialkylurea with an unsubstituted or substituted arylamine or a heterocyclic amine in the presence of that amine which is already present in the starting material, the respective N-alkyl- or N,N-dialkylurea.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: March 24, 1992
    Assignee: Agrolinz Agrarchemikalien Gesellschaft m.b.H.
    Inventors: Rudolf H. Worther, Horst Korntner, Egmont Auer, Kurt Thonhofer
  • Patent number: 5097060
    Abstract: A process for crystallizing L-alpha-aspartyl-L-phenylalanine methyl ester from its aqueous solution by cooling, which comprises adjusting the initial concentration of the ester so that the amount of a precipitated solid phase to be formed after cooling becomes about 10 grams or more per liter of the solvent, cooling the solution through conductive heat transfer through a cooled surface to form an apparently sherbet-like pseudosolid phase without causing forced flow by mechanical stirring or the like, and optionally further cooling the system after formation of the pseudosolid phase, is disclosed along with various apparatuses which may be used to carry out the invention.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: March 17, 1992
    Assignee: Ajinomoto Company Incorporated
    Inventors: Masayoshi Naruse, Haruo Kawasaki, Shinichi Kishimoto, Harutoshi Oura, Masao Nakamura, Hideo Takeda
  • Patent number: 5095135
    Abstract: A process for the preparation of naphthalenecarboxylic acid esters in which a substituted naphthalene is oxidized with molecular oxygen in the presence of a heavy metal-based catalyst in a solvent comprising a lower aliphatic monocarboxylic acid to form a naphthalenecarboxylic acid and the resulting acid is then esterified. The esterified product is purified by washing, recrystallization, and distillation in that order. Heavy metals are recovered as carbonates from filtrates and washings obtained by seeparation of crude acid and ester products and by washing thereof.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: March 10, 1992
    Assignee: Sumikin Chemical Co., Ltd.
    Inventors: Teruaki Yamada, Kazuhiko Maeda, Ryohei Minami, Yukio Nagao, Kazuki Sugiura
  • Patent number: 5095139
    Abstract: Rhizocticines of the formula ##STR1## in which X represents hydrogen or a hydrophobic amino acid radical and Y represents a basic amino acid radical, the C2 atoms of the amino acid radicals having the L-configuration, and protected derivatives and salts thereof.The compounds are obtained from culture broths of Bacillus subtilis or synthetically and have especially fungicidal action.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: March 10, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Loeffler, Martin Kugler, Gunther Jung, Armin Kern, Claudius Rapp
  • Patent number: 5095140
    Abstract: A process is provided for producing N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid with a peroxide to form an intermediate N-phosphonomethyliminodiacetic acid-N-oxide. Thereafter, the N-phosphonomethyliminodiacetic acid-N-oxide is converted to N-phosphonomethylglycine by adding a catalytic amount of a metal selected from the group consisting of iron, zinc, aluminum, vanadium and copper, or a compound selected from the group consisting of water-soluble vanadium compounds, ferrous salts and cuprous salts.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: March 10, 1992
    Assignee: Monsanto Company
    Inventor: Donald L. Fields, Jr.
  • Patent number: 5093514
    Abstract: A process for dehydrating compounds of the formula ##STR1## where --R is --CH.dbd.CH.sub.2, --C.tbd.CH --C.tbd.N or ##STR2## in an aqueous solution thereof is disclosed. In the case where R is --CH.dbd.CH.sub.2 or --C.dbd.CH, the temperature is preferably at least 50.degree. C. and preferably 75.degree. to 100.degree. C. The base is at least 0.1N and preferably 1.0 to 8N. Preferred bases are NaOH, KOH and C.sub.5 OH. In the case where --R is C.tbd.N, the temperature preferably is 20.degree. to 50.degree. C.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 3, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alan D. Grund, Ronald J. Huss, Michael H. Reimer
  • Patent number: 5093366
    Abstract: A cinnamoylamide derivative of general formula: ##STR1## [wherein, (i) in case that R.sup.2 represents a methyl group and R.sup.3 represents a hydrogen atom,(R.sup.1).sub.n represents a group selected out of3-pentyl group,4-pentyl group,4-neopentyl group,4-(2-ethylbutyl) group,4-(2-methylpentyl) group,2-fluoro-4-pentyloxy group,4-butylthio group,4-cyclobutylmethyl group,4-cyclohexylmethyl group,4-(4-phenylbutyl) group and4-phenoxy group, and(ii) in case that R.sup.2 represents a hydrogen atom and R.sup.3 represents a methyl group,(R.sup.1).sub.n represents a group selected out of3-pentyl group and4-penethyl group.]or non-toxic salts thereof possess an inhibitory activity on 5.alpha.-reductase, and therefore be useful for treating and/or preventing agent for alopecia, acnes or prostatic hyperfrophy.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: March 3, 1992
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Hisao Nakai, Hiroshi Terashima, Yoshinobu Arai
  • Patent number: 5093518
    Abstract: Glycerol derivatives of general formula (I)CH.sub.2 --ORCH--OR.sub.1 (I)CH.sub.2 --OR.sub.2in which R=allyl, methylallyl, acryloyl or methacryloyl, R.sub.1 =R.sub.2 =glyoxyloyl, R.sub.1, R.sub.2 =H, glyoxyloyl; their preparation process, their use as cross-linking agents and cross-linking or cross-linkable compositions containing them.Application in the textile or paper industry.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: March 3, 1992
    Assignee: Societe Francaise Hoechst
    Inventors: Didier Wilheim, Fernand Cuirassier, Alain Blanc
  • Patent number: 5093040
    Abstract: Complex N-hydroxyimide compounds and carboxy hydroxamic acid-functional derivatives thereof are prepared from organic amines reacted with maleate esters and maleic anhydride. The compounds exhibit strong metal ion chelating properties and are useful as detergent additives to improve stain removal.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: March 3, 1992
    Assignee: American Cyanamid Company
    Inventor: Stephen F. Donovan
  • Patent number: 5093367
    Abstract: The present invention is concerned with a process for the synthesis of substituted arylureidophenexymethyl propionic acids and an analogous benzamides series of compounds which have activity in the dissociation of oxygen from hemoglobin. In addition the process may be utilized to prepare compounds which are known.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: March 3, 1992
    Assignee: Montefiore Medical Center
    Inventors: Iraj Lalezari, Parviz Lalezari
  • Patent number: 5091562
    Abstract: The present invention relates to a process for eliminating 1-phosphono-1-carboxycyclopentan-3-one (ketone) from, or reducing its content in, an aqueous solution of 2-phosphonobutane-1,2,4-tricarboxylic acid, characterized in that the solution is adjusted to a pH value of > 6 using an aqueous inorganic base, particularly sodium hydroxide, and aqueous bleaching liquor is subsequently added in a molar ratio of NaOCl to ketone of >5:1.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: February 25, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Immenkeppel, Roland Kleinstuck, Hans-Dieter Block, Hermann Sicius, Peter Schmidt
  • Patent number: 5091557
    Abstract: A novel amino acid derivative is disclosed, which is produced using a relatively inexpensive amino acid as a starting material for an optically active moiety and shows a chiral nematic phase or a chiral smectic phase over a wide temperature range around room temperature. A process for producing the amino acid derivative is also disclosed.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: February 25, 1992
    Assignee: Showa Denko K.K.
    Inventors: Kimie Nagai, Schuichi Naijoh, Ayako Kurotaki, Koro Shirane, Chozo Inoue
  • Patent number: 5091560
    Abstract: A method for synthesizing an acyloxycarboxylic acid by providing a reaction chamber, establishing sources of an .alpha.-hydroxycarboxylic acid and an acid chloride, and repeatedly contacting substantially equal molar amounts of the .alpha.-hydroxycarboxylic acid and the acid chloride within the reaction chamber. The acyloxycarboxylic acid so synthesized is useful as a starting material for conversion to various esters which, when placed in aqueous solution with a source of hydrogen peroxide, result in a peracid and are useful for bleaching applications.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: February 25, 1992
    Assignee: The Clorox Company
    Inventor: Richard R. Rowland
  • Patent number: 5089653
    Abstract: Substituted 2-haloanilines are prepared from the correspondingly substituted 2,4-dichloro- or 2,4-dibromoanilines by selectively reducing a chloro or bromo substituent para to a protected amino group in the presence of the same halogen as an ortho substituent. The selective reductions are accomplished by protecting the amino function of the aniline with two protecting groups, e.g., as the diacetanilide or the succinimide.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: February 18, 1992
    Assignee: Dow Elanco
    Inventors: R. Garth Pews, Richard M. Wehmeyer, James E. Hunter
  • Patent number: 5087732
    Abstract: The invention provides the substantially optically pure 2(S)-stereoisomeric form of compounds of the formulae: ##STR1## and the salts thereof, together with processes for their preparation. The compounds are intermediates for the preparation of antihypertensive agents.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: February 11, 1992
    Assignee: Pfizer Inc.
    Inventors: Ian T. Barnish, Keith James
  • Patent number: 5087728
    Abstract: A process for producing a carboxylic acid or an ester thereof represented by formula (I): ##STR1## wherein: R represents a hydrogen atom or a lower alkyl group; R.sup.1 represents a lower alkyl group; CH.sub.2 COOR.sup.3, wherein R.sup.3 represents a hydrogen atom or a lower alkyl group; or NHR.sup.4, wherein R.sup.4 represents a formyl group, an acetyl group, a benzoyl group, or a chloroacetyl group, andR.sup.2 represents a hydrogen atom, a lower alkyl group, or a phenyl group,which comprises hydrogenating an unsaturated compound represented by formula (II): ##STR2## wherein R, R.sup.1, and R.sup.2 are as defined above, in the presence of a rhodium or ruthenium complex catalyst having, as a ligand, BICHEP which means 2,2'-bis(dicyclohexylphoshino)-6,6'-dimethyl-1,1'-biphenyl represented by formula (III): ##STR3## is disclosed.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: February 11, 1992
    Assignee: Takasago International Corporation
    Inventors: Hiroyuki Nohira, Hidemasa Takaya, Akira Miyashita
  • Patent number: 5087746
    Abstract: Disodium tartrate which can be easily converted to tartaric acid is produced by hydrolysis of an epoxysuccinate. Formation of impurities is minimized and the reaction time shortened by performing the hydrolysis under superatmospheric pressure and elevated temperature at a pH in the range of from about 6 to about 11.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: February 11, 1992
    Assignee: Monsanto Company
    Inventors: Richard J. Bosch, Skippy H. Ramsey